PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/11/23-15:27:40 G05 51.8 11.8 4.8 +/- 1.74 12.9 +/- 1.74 0.110 / 0.470 G10 242.2 19.6 8.9 +/- 3.01 19.9 +/- 3.01 0.120 / 0.540 G13 64.3 34.2 8.0 +/- 0.61 12.8 +/- 0.61 0.030 / 0.040 G15 112.1 57.1 8.8 +/- 0.58 10.3 +/- 0.58 0.030 / 0.040 G16 306.8 14.4 4.4 +/- 1.45 11.2 +/- 1.45 0.200 / 0.230 G20 257.2 43.7 8.4 +/- 1.25 11.5 +/- 1.25 0.200 / 0.270 G21 324.7 54.6 6.4 +/- 0.87 7.7 +/- 0.87 0.040 / 0.060 G26 280.1 18.5 5.2 +/- 1.12 12.0 +/- 1.12 0.040 / 0.070 G29 159.7 61.1 10.0 +/- 0.71 11.3 +/- 0.71 0.050 / 0.120